Hi and welcome,
I'm not sure if you intended to post you questions in the MS community or not but it doesn't really sound like MS, i'm genuinely not sure if it is something neurological or something else entirely, it would seem odd for the ER to send you home if you'd had a stroke something as serious, there is something like 300+ neurological conditions and hundreds of medical conditions that can mimic without causing neurological damage so it would be in your best interest to to keep open minded in to what your dealing with.
Hope that helps a little......JJ